Google Search is no longer just a list of links. Google AI Overviews now appear at the top of results, powered by Google’s Gemini model. And in early 2025, Google launched something even bigger: AI Mode. This is a full conversational search experience that browses the web on your behalf. This represents a fundamental shift in how people find information online. Traditional SEO tactics like keyword stuffing and basic backlink building are losing their grip fast, because Google now prioritizes context, user intent, and genuine authority above all else. In this guide, we’ll break down how we got here, what’s changed, and how to adapt your strategy before you fall behind.
- Google AI Overviews now appear on 30%+ of Google searches. Organic click-through rates have dropped by as much as 61% on affected queries
- AI Mode launched in March 2025 and is now available in 180+ countries. It browses, reasons, and answers complex questions in real time
- Gemini 3 is now the default model powering both AI Overviews and AI Mode globally, with deeper reasoning and multimodal capabilities
- Being cited in AI answers matters more than ranking alone — Brands cited in AI Overviews earn 35% more organic clicks
- Agentic search is here — Google’s AI can now book restaurants, compare products, and take action on your behalf
- SEO isn’t dead, but you need to adapt — E-E-A-T, structured content, and topical depth are what win in 2026
How Google Got Here: A Quick History
To understand where search is going, you need to understand how it got here. Google’s algorithm has evolved dramatically since 1998. The earliest version, PageRank, simply counted links to decide how important a page was. That was the birth of backlink-based SEO. Everything that followed built on that foundation and then eventually blew past it.
RankBrain: Google’s First AI Ranking System (2015)
RankBrain was the first time Google used machine learning as a ranking factor. Before it, Google matched exact keywords. RankBrain could interpret queries it had never seen before by understanding the intent behind them. Roughly 15% of daily searches are brand-new queries. RankBrain was built to handle exactly that.
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Take the below example. I searched for “the reverse time movie” and google knows that i am most likely looking for Tenet (I am) by turning my search query into a concept and giving me results based on the concept.
This is when keyword stuffing started losing its power. Google began rewarding content that was actually useful, not just keyword-heavy.
BERT: Teaching Google to Read (2019)
BERT (Bidirectional Encoder Representations from Transformers) gave Google the ability to understand context , not just individual words. It reads sentences the way humans do, considering every word in relation to the words around it.
A search like “2019 brazil traveler to usa need a visa” went from keyword matching to actually understanding the question.
The perfect search engine should understand exactly what you mean and give you back exactly what you need.
MUM: 1,000x More Powerful Than BERT (2021)
Google’s MUM (Multitask Unified Model) was the biggest leap yet. It is multimodal, meaning it can understand text, images, video, and audio simultaneously. It can also pull insights across 75 languages, even from sources you didn’t search in. MUM set the stage for everything that came after i.e. AI generating answers directly in search results.
What Are Google AI Overviews?
Google AI Overviews, formerly called Search Generative Experience (SGE), are AI-generated summaries that appear at the top of Google search results. Powered by Gemini, they pull and synthesize information from across the web and present it in a conversational format, complete with source links and suggested follow-up questions.
How Big Has It Got?
Huge. Google AI Overviews now appear for 30% of US desktop keywords, a new high as of September 2025. They are now used by more than a billion people. And Gemini 3 is now the default model for Google AI Overviews globally, giving Google faster, deeper answers across the board.
AI Overviews are one of the most successful launches in Search in the past decade. People are coming to Google to ask more of their questions, including more complex, longer and multimodal questions.
What Is Google AI Mode?
In March 2025, Google introduced AI Mode, a new experimental search experience built on a custom version of Gemini 2.0. It’s a full conversational search engine that uses a “query fan-out” technique, breaking down your question into subtopics and issuing multiple queries simultaneously, then brings the answers together into one comprehensive response.
What Can AI Mode Actually Do?
AI Mode goes well beyond traditional search. It now has agentic capabilities. It can book restaurant reservations, compare products, and take action on your behalf through integrations with partners like OpenTable, Ticketmaster, and more. It can also generate images, create infographics, and run Deep Search, Google’s most advanced research tool, which browses hundreds of sites and reasons across them, crafting a comprehensive, fully-cited report in just minutes. This is a summary of what AI mode can do:
- Conversational follow-ups — Ask complex, multi-part questions and dig deeper with follow-ups
- Agentic actions — Book, compare, and take action without leaving search
- Deep Search — Full research reports generated from hundreds of sources
- Visual exploration — Search by image, get shoppable visual results
- Personal Intelligence — Opt-in to connect Gmail and Photos for tailored recommendations
AI Mode is our most powerful AI search, with more advanced reasoning and multimodality, and the ability to go deeper through follow-up questions and helpful links to the web.
AI Mode vs AI Overviews: What’s the Difference?
Think of it like this. AI Overviews are the quick answer. They appear on the main results page for simpler queries. AI Mode is the deep dive. It’s designed for complex, exploratory questions where you need breadth, comparison, and reasoning.
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How AI Search Is Impacting SEO Right Now
Here’s the reality. Google AI Overviews are already changing the numbers. Seer Interactive’s September 2025 study found that organic CTR dropped from 1.76% to 0.61% for queries with AI Overviews, a 61% decline. 60% of Google searches now end without any click at all. That’s not a small dip. It’s a structural shift. This is how AI search is changing SEO:
- Less click-through traffic — AI answers satisfy users before they even visit your site
- Citation is the new ranking — Brands cited in AI Overviews earn 35% more organic clicks and 91% more paid clicks
- Authority matters more than ever — Google’s AI favors sources with strong expertise and credibility
- Long-tail and conversational queries are surging — People search in full sentences, not just keywords
- Structured data is critical — Schema markup helps your content get picked up by AI-generated results
The marketers thriving in 2025 stopped optimizing for rankings and traffic. They optimize for trust, citation, and share of voice.
What Is E-E-A-T And Why Does It Matter Now?
E-E-A-T stands for Experience, Expertise, Authoritativeness, and Trustworthiness. It’s the quality framework Google uses to decide whether your content is genuinely trustworthy. There are no additional technical requirements to appear in Google AI Overviews or AI Mode, but the content Google’s AI chooses to cite is content that scores high on E-E-A-T.
E-E-A-T is especially critical for YMYL (Your Money or Your Life) topics i.e. health, finance, legal advice. Of all four pillars, trustworthiness carries the most weight. If Google’s AI can’t trust your content, it won’t cite it.
Our systems give even more weight to content that aligns with strong E-E-A-T for topics that could significantly impact the health, financial stability, or safety of people.
The Rise of Agentic Search
2026 is when search starts doing things for you, not just finding things. As mentioned earlier, AI Mode now has agentic capabilities; it can book restaurants, buy tickets, and complete tasks on your behalf through partner integrations. Google’s research project SAGE (published January 2026) is training AI agents to handle even more complex, multi-step research tasks.
What Does This Mean for Your Business?
We are moving from “search” to “agents.” Instead of browsing a list of links, customers are increasingly using AI agents as a digital personal shopping assistant. For businesses, this means your product data, service listings, and structured information need to be machine-readable and not just human-readable.
- Optimize product data — Make sure Google Merchant Centre and structured data are perfect
- Be discoverable by agents — Clean, well-organized business info gets recommended
- Build trust signals — Reviews, credentials, and authoritative mentions matter more than ever
SEO in 2026 and beyond isn’t about gaming AI. It’s about serving users and AI alike with content that answers complex questions with clarity and authority.
How to Future-Proof Your SEO in 2026
So how do you actually adapt? The good news is that the core fundamentals haven’t disappeared. They’ve just evolved. Here’s what to focus on right now to stay ahead in AI-driven search.
Write for Depth
Google’s AI rewards content that is comprehensive. That means covering a topic thoroughly, not just hitting a keyword target. AI Mode rewards content that shows lived expertise, like case studies, tutorials, and frameworks. Write in a natural tone. Avoid fluff. Answer the question fully.
Optimize to Be Cited
Getting cited in AI Overviews is now as important as ranking on the first page. Here’s how to increase your chances of being cited:
- Use concise, direct answers especially in intros and conclusions
- Add FAQ sections and structured bullet points
- Use clear H2 and H3 headings that break down your topic logically
- Include schema markup so Google understands your content structure
Build Strong E-E-A-T Signals
To get cited by AI and trusted by Google, your site needs credibility signals:
- Real expert authors — Include bios, credentials, and LinkedIn profiles
- High-quality backlinks — Links from trusted, authoritative sites still matter
- Cite your sources — Link to credible references. It builds trust with both readers and AI
- Original data and research — Unique insights signal authority that AI can’t replicate
Keep Your Technical SEO Sharp
The same foundational SEO best practices apply to AI features as they do to Google Search overall, but the stakes are higher now. Make sure:
- Page speed is fast — Use PageSpeed Insights to audit regularly
- Your site is mobile-first — AI Overviews are surging on mobile
- Schema markup is in place — Structured data helps AI find and cite your content
- Content stays fresh — AI tools prioritize up-to-date information when generating answers
Key Takeaways
- Google AI search (Overviews, AI Mode, and Gemini) is no longer experimental. It’s the new standard.
- Organic CTR has dropped up to 61% on queries where AI Overviews appear. Citation is now more valuable than ranking alone.
- 97% of AI Overviews cite at least one source from the top 20 organic results, so traditional SEO still feeds the AI pipeline.
- Agentic search (booking, buying, comparing) is rolling out now. Structured product and business data will determine who gets recommended.
- E-E-A-T, content depth, and topical authority are the most important signals for being cited by AI in 2026.
Final Thoughts
SEO isn’t dying. It’s transforming like it always has with every google algorithm update. AI Overviews, AI Mode, and agentic search are reshaping how people find and act on information. The websites that will win aren’t the ones gaming the algorithm. They’re the ones building genuine authority, creating deep, helpful content, and structuring their data so AI can trust and cite them. Adapt now, and you’ll be the source AI points people to.
Want Your Website to Rank in the Age of AI?
Google’s AI is changing how websites get found and most businesses haven’t caught up yet. At ClubUnbrick, we help entrepreneurs and businesses build websites and content strategies that are optimized for both traditional search and AI-powered results. Don’t get left behind.
What We Offer
- SEO & AI-Ready Websites — We build sites structured to rank in Google’s AI Overviews, AI Mode, and traditional search
- Content Strategy — We create high-quality, E-E-A-T-driven content that Google’s AI trusts and cites
- Technical SEO Audit — We review your speed, schema markup, and site structure to make sure nothing is holding you back
- Ongoing SEO Support — Google’s algorithm keeps evolving. We keep your site ahead of every change
Let’s make sure your business is visible on Google and inside the AI answers people trust.
